package com.yuexun.dhdoctor.util;

import android.content.Context;
import android.content.Intent;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.support.v4.content.FileProvider;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;

/**
 * Created by work-jx on 2016/8/15.
 */
public class FileUtils {
    public static String SDPATH;

    private Context mContext;

    public static String getSDPATH() {
        return SDPATH;
    }

    public FileUtils(Context context) {
        //得到当前外部存储设备的目录
        // /SDCARD
        SDPATH = Environment.getExternalStorageDirectory() + "/";
        this.mContext = context;
    }

    /**
     * 在SD卡上创建文件
     *
     * @throws IOException
     */
    public File creatSDFile(String fileName) throws IOException {
        File file = new File(SDPATH + fileName);
        file.createNewFile();
        return file;
    }

    /**
     * 在SD卡上创建目录
     *
     * @param dirName
     */
    public File creatSDDir(String dirName) {
        File dir = new File(SDPATH + dirName);
        dir.mkdir();
        return dir;
    }

    /**
     * 判断SD卡上的文件夹是否存在
     */
    public static boolean isFileExist(String fileName) {
        File file = new File(SDPATH + fileName);
        return file.exists();
    }

    /**
     * 将一个InputStream里面的数据写入到SD卡中
     */
    public File write2SDFromInput(String path, String fileName, InputStream input) {
        File file = null;
        OutputStream output = null;
        try {
            creatSDDir(path);
            file = creatSDFile(path + fileName);
            output = new FileOutputStream(file);
            byte buffer[] = new byte[4 * 1024];
            int len = 0;
            while ((len = input.read(buffer)) != -1) {
                output.write(buffer, 0, len);
            }
            output.flush();
        } catch (Exception e) {
            e.printStackTrace();
        } finally {
            try {
                output.close();
            } catch (Exception e) {
                e.printStackTrace();
            }
        }
        return file;
    }

    public Intent openFile(String filePath) {

        File file = new File(filePath);
        if (!file.exists())
            return null;
        /* 取得扩展名 */
        String end = file
                .getName()
                .substring(file.getName().lastIndexOf(".") + 1,
                        file.getName().length()).toLowerCase();
        /* 依扩展名的类型决定MimeType */
        if (end.equals("m4a") || end.equals("mp3") || end.equals("mid")
                || end.equals("xmf") || end.equals("ogg") || end.equals("wav")) {
            return getAudioFileIntent(filePath);
        } else if (end.equals("3gp") || end.equals("mp4")) {
            return getAudioFileIntent(filePath);
        } else if (end.equals("jpg") || end.equals("gif") || end.equals("png")
                || end.equals("jpeg") || end.equals("bmp")) {
            return getImageFileIntent(filePath);
        } else if (end.equals("apk")) {
            return getApkFileIntent(filePath);
        } else if (end.equals("ppt") || end.equals("pptx")) {
            return getPptFileIntent(filePath);
        } else if (end.equals("xls") || end.equals("xlsx")) {
            return getExcelFileIntent(filePath);
        } else if (end.equals("doc") || end.equals("docx")) {
            return getWordFileIntent(filePath);
        } else if (end.equals("pdf")) {
            return getPdfFileIntent(filePath);
        } else if (end.equals("chm")) {
            return getChmFileIntent(filePath);
        } else if (end.equals("txt")) {
            return getTextFileIntent(filePath, false);
        } else {
            return getAllIntent(filePath);
        }
    }

    // Android获取一个用于打开APK文件的intent
    public Intent getAllIntent(String param) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "*/*");
        return intent;
    }

    // Android获取一个用于打开APK文件的intent
    public Intent getApkFileIntent(String param) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "application/vnd.android.package-archive");
        return intent;
    }

    // Android获取一个用于打开VIDEO文件的intent
    public static Intent getVideoFileIntent(String param) {

        Intent intent = new Intent("android.intent.action.VIEW");
        intent.addFlags(Intent.FLAG_ACTIVITY_CLEAR_TOP);
        intent.putExtra("oneshot", 0);
        intent.putExtra("configchange", 0);
        Uri uri = Uri.fromFile(new File(param));
        intent.setDataAndType(uri, "video/*");
        return intent;
    }

    // Android获取一个用于打开AUDIO文件的intent
    public Intent getAudioFileIntent(String param) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "audio/*");
        return intent;
    }

    // Android获取一个用于打开Html文件的intent
    public static Intent getHtmlFileIntent(String param) {

        Uri uri = Uri.parse(param).buildUpon()
                .encodedAuthority("com.android.htmlfileprovider")
                .scheme("content").encodedPath(param).build();
        Intent intent = new Intent("android.intent.action.VIEW");
        intent.setDataAndType(uri, "text/html");
        return intent;
    }

    // Android获取一个用于打开图片文件的intent
    public Intent getImageFileIntent(String param) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "image/*");
        return intent;
    }

    // Android获取一个用于打开PPT文件的intent
    public Intent getPptFileIntent(String param) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "application/vnd.ms-powerpoint");
        return intent;
    }

    // Android获取一个用于打开Excel文件的intent
    public Intent getExcelFileIntent(String param) {

        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "application/vnd.ms-excel");
        return intent;
    }

    // Android获取一个用于打开Word文件的intent
    public Intent getWordFileIntent(String param) {

        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "application/msword");
        return intent;
    }

    // Android获取一个用于打开CHM文件的intent
    public Intent getChmFileIntent(String param) {

        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "application/x-chm");
        return intent;
    }

    // Android获取一个用于打开文本文件的intent
    public Intent getTextFileIntent(String param, boolean paramBoolean) {
        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "text/plain");
        return intent;
    }

    // Android获取一个用于打开PDF文件的intent
    public Intent getPdfFileIntent(String param) {

        Intent intent = new Intent(Intent.ACTION_VIEW);
        intent.addCategory(Intent.CATEGORY_DEFAULT);
        intent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
        intent.addFlags(Intent.FLAG_GRANT_READ_URI_PERMISSION);
        Uri uri;
        if (Build.VERSION.SDK_INT >= 24) {//判读版本是否在7.0以上
            uri = FileProvider.getUriForFile(mContext, mContext.getPackageName() + ".fileProvider", new File(param));
        } else {
            uri = Uri.fromFile(new File(param));
        }
        intent.setDataAndType(uri, "application/pdf");
        return intent;
    }
}
